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SqMod/module/Vendor/MDBC/libmariadb/strinstr.c
2020-03-22 14:54:40 +02:00

51 lines
1.6 KiB
C

/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02111-1301, USA */
/* File : strinstr.c
Author : Monty & David
Updated: 1986.12.08
Defines: strinstr()
strinstr(src, pat) looks for an instance of pat in src. pat is not a
regex(3) pattern, it is a literal string which must be matched exactly.
The result 0 if the pattern was not found else it is the start char of
the pattern counted from the beginning of the string, where the first
char is 1.
*/
#include <my_global.h>
#include "m_string.h"
uint strinstr(reg1 const char *str,reg4 const char *search)
{
reg2 my_string i,j;
my_string start = (my_string) str;
skipp:
while (*str != '\0')
{
if (*str++ == *search)
{
i=(my_string) str; j= (my_string) search+1;
while (*j)
if (*i++ != *j++) goto skipp;
return ((uint) (str - start));
}
}
return (0);
}